UCC28056 Datasheet, Texas Instruments

*1 Ultra-low no-load input power enables < 80-mW standby power at 230 VAC in PFC+LLC system
* Excellent light load efficiency and high efficiency over wide range .

* Desktop computing and Digital TV
* Gaming, Set top box and AC adapter front end
* LED drivers and luminari.

The UCC28056 device drives PFC boost stages based on an innovative mixed mode method that operates in transition mode (TM) at full load and transitions seamlessly into discontinuous conduction mode (DCM) at reduced load, automatically reducing switch.